Question I7 6700k

[notexactly]

Hello everyone. I have an older PC that still runs very well. I won't be changing my 6700k yet so i wanted to overclock it which is a reason why i bought this CPU back then. PSU, case fans and case are not quite good and i'll be changing them soon. This is long and i'm not an expert so please bear with me.
PC: i7-6700K, Z170 Pro Gaming AURA, Hyper 212 EVO, 2x8 Fury 2666, HyperX Fury 240GB 2.5" SSD, Samsung 870 EVO 1TB SSD, WD Caviar Blue 1 TB 3.5", TT Smart 730 W 80+, GTX 1060, 2 stock case fans

I tried couple of different OC settings just changing ratio and vcore in manual mode. Ai overclock Tuner was set to XMP. I didnt try adaptive or offset modes until i get a stable system. I ran only Realbench benchmarks for these first 4 just to see how it goes step by step.
4.2Ghz at 1.250v 2 x Benchmarks OK
4.3Ghz at 1.250v 2 x Benchmarks OK
4.4Ghz at 1.250v 2 x Benchmarks OK
4.5Ghz at 1.300v passed 1 benchmark but BSOD happened after the second benchmark.
Temperatures were mostly fine for all tests with max at 71/72C but mostly between 60 and 70 when under load (for 4.2, 4.3 and 4.4).

After that BSOD i cant even go for 4.4Ghz with 1.250v or 1.275v. Benchmark passes well but AIDA64 stops saying "Hardware failure detected". It fails after 10 minutes at 1.250 and after 20minutes at 1.275. 4.2Ghz and 4.3Ghz at 1.250v still work well.
I just tried 4.5Ghz at 1.325v and i ran Realbench Benchmark and AIDA64. CPUZ showed vcore at 1.328 but AIDA64, AI Suite and HWmonitor show vcore at 1.344 and 1.360. Temperatures got higher with max at 83/84 while mostly being between 65 and 75. I stopped AIDA64 after 33 minutes while it failed at 4.4Ghz 1.275v after 20minutes. It seems stable but temperatures are high and i'd like core voltage to be lower.

Whatever ratio and vcore i set in Bios, vcore is shown a bit higher in AIDA64, HWmonitor and CPUZ but never drops when idling. When i revert to stock, set everything on auto and run benchmark and Aida64, vcore is above 1.3 (mostly 1.36 and 1.376) which i'm not happy about especially at 4Ghz. It does drop to 0.7/0.8 when idling.

Why is vcore always higher than vcore set in Bios?
Why is vcore at stock settings so high?
What type of adaptive/offset and LLC settings should i try?
Could i set lower vcore for 4.5Ghz and would that lower my temperatures to under 75 or so?
Should i do some other tests too?

I'm not trying to get to some high OC levels and chip might not be able to go far but i'd like to get 4.5Ghz at good temperatures and reasonable core voltage.
Any suggestions highly appreciated. Thanx and sorry for the long post.

 

[Zerk2012]

Hello everyone. I have an older PC that still runs very well. I won't be changing my 6700k yet so i wanted to overclock it which is a reason why i bought this CPU back then. PSU, case fans and case are not quite good and i'll be changing them soon. This is long and i'm not an expert so please bear with me.
PC: i7-6700K, Z170 Pro Gaming AURA, Hyper 212 EVO, 2x8 Fury 2666, HyperX Fury 240GB 2.5" SSD, Samsung 870 EVO 1TB SSD, WD Caviar Blue 1 TB 3.5", TT Smart 730 W 80+, GTX 1060, 2 stock case fans

I tried couple of different OC settings just changing ratio and vcore in manual mode. Ai overclock Tuner was set to XMP. I didnt try adaptive or offset modes until i get a stable system. I ran only Realbench benchmarks for these first 4 just to see how it goes step by step.
4.2Ghz at 1.250v 2 x Benchmarks OK
4.3Ghz at 1.250v 2 x Benchmarks OK
4.4Ghz at 1.250v 2 x Benchmarks OK
4.5Ghz at 1.300v passed 1 benchmark but BSOD happened after the second benchmark.
Temperatures were mostly fine for all tests with max at 71/72C but mostly between 60 and 70 when under load (for 4.2, 4.3 and 4.4).

After that BSOD i cant even go for 4.4Ghz with 1.250v or 1.275v. Benchmark passes well but AIDA64 stops saying "Hardware failure detected". It fails after 10 minutes at 1.250 and after 20minutes at 1.275. 4.2Ghz and 4.3Ghz at 1.250v still work well.
I just tried 4.5Ghz at 1.325v and i ran Realbench Benchmark and AIDA64. CPUZ showed vcore at 1.328 but AIDA64, AI Suite and HWmonitor show vcore at 1.344 and 1.360. Temperatures got higher with max at 83/84 while mostly being between 65 and 75. I stopped AIDA64 after 33 minutes while it failed at 4.4Ghz 1.275v after 20minutes. It seems stable but temperatures are high and i'd like core voltage to be lower.

Whatever ratio and vcore i set in Bios, vcore is shown a bit higher in AIDA64, HWmonitor and CPUZ but never drops when idling. When i revert to stock, set everything on auto and run benchmark and Aida64, vcore is above 1.3 (mostly 1.36 and 1.376) which i'm not happy about especially at 4Ghz. It does drop to 0.7/0.8 when idling.

Why is vcore always higher than vcore set in Bios?
Why is vcore at stock settings so high?
What type of adaptive/offset and LLC settings should i try?
Could i set lower vcore for 4.5Ghz and would that lower my temperatures to under 75 or so?
Should i do some other tests too?

I'm not trying to get to some high OC levels and chip might not be able to go far but i'd like to get 4.5Ghz at good temperatures and reasonable core voltage.
Any suggestions highly appreciated. Thanx and sorry for the long post.

6700K 4.50GHz Not Tested 1.376V 100%
6700K 4.60GHz Not Tested 1.392V Top 95%
6700K 4.70GHz Not Tested 1.408V Top 68%
6700K 4.80GHz Not Tested 1.424V Top 24%
6700K 4.90GHz Not Tested 1.440V Top 6%

https://siliconlottery.com/pages/statistics

The Hyper 212 is very entry level hard to believe your getting temps that low.

 

[notexactly]

6700K 4.50GHz Not Tested 1.376V 100%
6700K 4.60GHz Not Tested 1.392V Top 95%
6700K 4.70GHz Not Tested 1.408V Top 68%
6700K 4.80GHz Not Tested 1.424V Top 24%
6700K 4.90GHz Not Tested 1.440V Top 6%

https://siliconlottery.com/pages/statistics

The Hyper 212 is very entry level hard to believe your getting temps that low.

i have no reason to lie about this whatsoever. I just did a stresstest at 4.5Ghz and 1.320v and temperatures were a bit higher than yesterdays test.
Here are the temperatures in AIDA and CPUZ while stresstesting. First is at about 20 minutes and second one at around 7 minutes -

https://imgur.com/a/giopkRW

View: https://imgur.com/a/giopkRW

 

[Zerk2012]

i have no reason to lie about this whatsoever. I just did a stresstest at 4.5Ghz and 1.320v and temperatures were a bit higher than yesterdays test.
Here are the temperatures in AIDA and CPUZ while stresstesting. First is at about 20 minutes and second one at around 7 minutes -

https://imgur.com/a/giopkRW

View: https://imgur.com/a/giopkRW

86C was the max

 

[notexactly]

86C was the max

It was on this setting. In first post i wrote about 4.2 4.3 and 4.4 which did get lower temperatures in Realbench benchmark which i specifically stated above. AIDA64 test does get higher temperatures. i'm running AIDA64 test right now at 4.4 and 1.280v and max was 78.
However benchmark max temp is 69 here's the screenshot of CPUZ after finishing the benchmark for same setting :

https://imgur.com/a/Emv3qYx

View: https://imgur.com/a/Emv3qYx

 

[Inthrutheoutdoor]

First, you have to remember that every cpu chip will differ slightly in it's tolerances for O/C'ing.... some will go higher than others...

Yours is apparently saying that it is limited to 4.4ghz for the most part. However, there are sooooo many variables that can affect any o/c, it's really just something you have to play with, which you are now acutely aware of

Back when I had a system practically identical to yours, I also could only get my 6700k to run stable @4.4ghz and 1.28v, although when I moved to an 280mm AIO cooler, I got it to go up to 4.6Ghz at 1.31v with average temps of 55-60c....

You could try resetting everything back to stock and try the Intel Extreme Tuning app, which is what I was using with pretty good results....

Good luck !

 

[notexactly]

@Inthrutheoutdoor Thanx for the reply.
I am now very aware of that So many different settings you have to go through before settling on the one that suits your cpu, cooling, mb etc or the one that may be pushing your cpu a bit but you're comfortable with, understanding the consequences.
My cooling isnt very good so i realize that is one of the problems probably along with PSU.
I'll definitely try lowering vcore for 4.5 a bit more to see whats the lowest possible voltage for stable system (1.300 isnt working). If tha'ts 1.310 or whatever and IF it lowers my temps that might be fine considering i've read that many people push this chip to much higher voltages (but have better temps too )
I'll also try doing it with Intel Tuning app, i have it installed actually but haven't tried it yet. Thanx

 

[Zerk2012]

It was on this setting. In first post i wrote about 4.2 4.3 and 4.4 which did get lower temperatures in Realbench benchmark which i specifically stated above. AIDA64 test does get higher temperatures. i'm running AIDA64 test right now at 4.4 and 1.280v and max was 78.
However benchmark max temp is 69 here's the screenshot of CPUZ after finishing the benchmark for same setting :

https://imgur.com/a/Emv3qYx

View: https://imgur.com/a/Emv3qYx

Keep changing information all I can go by is what you post and your changing it every time!

 

[notexactly]

Keep changing information all I can go by is what you post and your changing it every time!

I didn't change any information. I wrote this in the first post:
" I ran only Realbench benchmarks for these first 4 just to see how it goes step by step.
4.2Ghz at 1.250v 2 x Benchmarks OK
4.3Ghz at 1.250v 2 x Benchmarks OK
4.4Ghz at 1.250v 2 x Benchmarks OK
4.5Ghz at 1.300v passed 1 benchmark but BSOD happened after the second benchmark.
Temperatures were mostly fine for all tests with max at 71/72C but mostly between 60 and 70 when under load (for 4.2, 4.3 and 4.4). "

Temperatures mentioned here are measured during and after using ONLY Realbench benchmark. What is written is what CPUz showed at the time and using that benchmark.

In the last reply to you i sent the screenshot for temperatures after using ONLY benchmark at a 4.4 and a vcore of 1.280 where max temp was 69.

Again, i have no reason to lie about this, it is in my interest to get a stable system at lower temp numbers and lower vcore possible.
Maybe my wording is wrong as english isnt my first language, if that's the case i'm sorry.
If you want i can run realbench benchmarks at those settings later after work and send you screenshots.
Thanx for the replies, i appreciate the help.

 

[notexactly]

@Zerk2012 after Realbench benchmark for 43/1.250v

https://imgur.com/rkVvhGP

View: https://i.imgur.com/rkVvhGP.png

after realbench, Intel Processor diagnostic tool and 13mins of Aida stresstest

https://imgur.com/vPME5eW

View: https://i.imgur.com/vPME5eW.png